Glial cells in the vmPFC include astrocytes, oligodendrocytes, and microglia. These cells support and protect neurons, modulate synaptic activity, and maintain the homeostasis of the neural environment. Astrocytes are particularly involved in the regulation of blood flow and neurotransmitter uptake, while oligodendrocytes form myelin sheaths around axons, facilitating rapid signal transmission. Microglia act as the brain's immune cells, responding to injury and disease.